KR940005980B1 - Coupling device - Google Patents

Coupling device Download PDF

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Publication number
KR940005980B1
KR940005980B1 KR1019900019756A KR900019756A KR940005980B1 KR 940005980 B1 KR940005980 B1 KR 940005980B1 KR 1019900019756 A KR1019900019756 A KR 1019900019756A KR 900019756 A KR900019756 A KR 900019756A KR 940005980 B1 KR940005980 B1 KR 940005980B1
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South Korea
Prior art keywords
valve
oil
drive disk
hole
communication hole
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KR1019900019756A
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Korean (ko)
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KR910011520A (en
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히로시 이노우에
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우수이 고쿠사이 산교 가부시기가이샤
우수이 유다로
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
    • F16D35/02—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
    • F16D35/02—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part
    • F16D35/021—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part actuated by valves
    • F16D35/026—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part actuated by valves actuated by a plurality of valves; the valves being actuated by a combination of mechanisms covered by more than one of groups F16D35/022 - F16D35/025

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Temperature-Responsive Valves (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

내용 없음.No content.

Description

온도감응형 유체식 팬 커플링 장치Thermostatic Fluidized Fan Coupling Device

제1도는 본 발명의 일실시예로서의 온도감응형 유체식 팬 커플링 장치의 수직 단면도.1 is a vertical cross-sectional view of a thermosensitive fluidic fan coupling device as an embodiment of the present invention.

제2도는 커플링 장치의 저속 회전시에 밸브가 개방된 상태를 나타내는 제1도에 도시한 원심밸브의 정면도.FIG. 2 is a front view of the centrifugal valve shown in FIG. 1 showing a state in which the valve is opened at low speed rotation of the coupling device. FIG.

제3도는 커플링 장치의 고속 회전시에 밸브가 개방된 상태를 나타내는 제2도의 밸브의 정면도.FIG. 3 is a front view of the valve of FIG. 2 showing a state in which the valve is opened at the high speed of rotation of the coupling device.

제4도와 제5도는 본 발명의 다른 실시예를 나타내는 제2도와 제3도에 해당하는 밸브의 정면도.4 and 5 are front views of valves corresponding to FIGS. 2 and 3 showing another embodiment of the present invention.

제6a도-제6c도는 본 발명과 종래 기술을 비교하기 위하여 도출된 특성과, 성능곡선을 나타내는 그래프.6a to 6c are graphs showing characteristics and performance curves derived for comparing the present invention and the prior art.

제7도는 본 발명의 또다른 실시예에 대한 특성과, 성능곡선을 나타내는 그래프.7 is a graph showing characteristics and performance curves for another embodiment of the present invention.

제8도는 제1도에 해당하는 본 발명의 또다른 실시예로서의 온도감응형 유체식 팬 커플링 장치의 확대수직단면도.FIG. 8 is an enlarged vertical cross-sectional view of a temperature sensitive fluidic fan coupling device as another embodiment of the invention corresponding to FIG.

제9도는 구동디스크 근처의 종래의 커플링 장치의 일부의 수직단면도.9 is a vertical sectional view of a portion of a conventional coupling device near a drive disk.

제10도는 제4도의 구동디스크의 상반부의 정면도.FIG. 10 is a front view of the upper half of the drive disk of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 회전축 2 : 케이싱1: shaft 2: casing

4 : 토크전달챔버 5,15 : 간막이판4: torque transfer chamber 5,15: partition plate

6 : 오일챔버 7 : 구동디스크6 oil chamber 7 drive disk

8 : 밸브부재 5' : 유동조정구멍8: valve member 5 ': flow adjusting hole

9 : 커넥팅로드 10 : 온도감응부재9: connecting rod 10: temperature sensitive member

12 : 댐 13 : 순환통로12: dam 13: circulation passage

14 : 원심밸브 7',7a',7b' : 연통구멍14: centrifugal valve 7 ', 7a', 7b ': communication hole

14',14a',14b' : 인장스프링, 압축스프링14 ', 14a', 14b ': Tension spring, compression spring

16 : 래버린스 기구16: labyrinth mechanism

본 발명은 자동차의 운행조건에 따른 주변온도의 변화를 감지하여 자동차 엔진냉각팬의 회전이 자동으로 제어되어 적당량의 냉각공기가 엔진에 공급되는 형태의 온도감응형 유체식 커플링 장치의 구조를 개량시킨 것이다.The present invention improves the structure of the temperature-sensitive fluid type coupling device in which the rotation of the vehicle engine cooling fan is automatically controlled by sensing the change of the ambient temperature according to the driving conditions of the vehicle so that an appropriate amount of cooling air is supplied to the engine. It is.

종래에는 제9도와 제10도에 도시한 바와같은 형태의 냉각팬 커플링 장치가 사용되었으며 다수의 연결구멍(27')이 구동디스크(27)(본 발명의 기본적인 부분에 해당함)속에 제공되며 팬의 회전이 오일챔버(26)으로 부터 토크전달챔버(24)로 오일이 유동하는 것만을 조정하여 제어하였다.Conventionally, a cooling fan coupling device of the type as shown in FIGS. 9 and 10 is used, and a plurality of connecting holes 27 'are provided in the drive disk 27 (corresponding to the basic part of the present invention) and the fan The rotation of was controlled by adjusting only the oil flowing from the oil chamber 26 to the torque transfer chamber 24.

그러나 상술한 종래기술은 주위온도의 변화에 의존하는 토크전달기구에 의존하기 때문에, 팬에 의한 냉각공기의 양이 크게 필요하지 않은 자동차의 고속운행중의 엔진의 고속 회전시에 제6a도의 곡선(B)로 나타낸 바와같은 팬의 과도한 회전에 의하여 엔진에 공급될 냉각공기의 양이 너무 많아지며, 자동차의 정상운행 속도와 관련하며 크고 작은 속도차를 가지고 엔진이 가속되는 경우에 대한 제6b도와 제6c도의 곡선(Bs)로 나타낸 바와같이 구동축의 회전수가 급격히 증가하여 팬의 회전수가 증가하므로, 팬커플링 장치의 주목적, 즉 소비마력과 팬 소음의 감소가 완전히 얻어지지 않는 단점을 갖기 때문에, 좀더 개량할 필요가 있었다.However, since the above-described prior art relies on a torque transmission mechanism that depends on the change of the ambient temperature, the curve B of FIG. 6a at the high speed rotation of the engine during the high-speed running of the automobile, in which the amount of cooling air by the fan is not required largely. 6b and 6c for the case where the amount of cooling air to be supplied to the engine is too large due to excessive rotation of the fan, which is related to the normal running speed of the vehicle, and the engine is accelerated with a large and small speed difference. As indicated by the curve Bs in the figure, since the rotation speed of the drive shaft increases rapidly and the rotation speed of the fan increases, the main purpose of the fan coupling device, i.e., the reduction of the consumption horsepower and the fan noise is not completely obtained, which is further improved. I needed to.

본 발명은 상술한 종래기술의 문제점의 관점에서 만들어졌으며 본 발명의 목적은 자동차의 고속운행시 엔진이 고속으로 회전하거나 정상운행 상태로부터 급격히 가속되는 경우에도 팬의 회전수를 적절히 제어하여 적정량의 냉각공기를 엔진에 공급할 수 있으며 소비마력과 팬 소음을 보다 효과적으로 감소시킬 수 있고 팬에 대하여 다단계가 제어가 실시될 수 있는 온도감응형 유체식 팬 커플링 장치를 제공하는 것이다.The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide an appropriate amount of cooling by appropriately controlling the rotation speed of a fan even when the engine rotates at a high speed or rapidly accelerates from a normal driving state of a vehicle. It is to provide a temperature-sensitive fluidic fan coupling device that can supply air to the engine, reduce power consumption and fan noise more effectively, and allow multi-step control of the fan.

상기 목적을 달성하기 위하여, 본 발명에 따른 온도감응형 유체식 팬 커플링 장치는 상단부에서 구동디스크가 부착된 회전 구동축과 외주변에서의 냉각팬이 부착된 커버와 케이싱으로 구성된 밀봉박스를 구비하며, 밀봉박스는 토크전달챔버내에 수용된 구동디스크를 갖는 오일유동조정구멍을 갖는 간막이판에 의하여 오일챔버와 토크전달챔버로 구분되며, 오일챔버에는, 오일순환통로가 제공되며 토크전달챔버에는 구동디스크와 외주변과 반대방향으로 오일순환통로에 연결된 내측벽 표면의 댐이 제공된다. 또한 온도감응부재는 케이싱과 함께 밀봉박스의 일부를 형성하는 커버의 전방표면의 중앙부에 부착되며 밸브부재는 오일챔버내에 제공되고 밸브부재의 한 단부는 간막이판에 고정되고 다른 단부는 오일유동조정구멍에 인접위치한다. 작동에 있어서, 주위온도가 소정치를 초과할때 밸브부재는 구동디스크의 오일유동구멍을 개방하는 한편, 주변온도가 소정치 이하일때 밸브부재와 온도감응부재 사이에 배치된 커넥팅로드를 통한 온도감응부재의 변형에 따라 밸브부재는 구멍을 폐쇄한다. 따라서 회전구동축으로부터 밀봉박스로의 토크전달은 커버와 케이싱의 양측 내측벽면과 구동디스크 사이에 형성된 토크전달 틈새에서의 오일의 효과적인 접촉면적의 증가 또는 감소에 의하여 제어된다. 상술한 구조외에, 본 발명은 연통구멍의 근처의 구동디스크에 적어도 하나의 원심밸브를 제공하여 회전구동축이 고속으로 작동할때 원심밸브는 연통구멍을 폐쇄하는 것을 특징으로 한다. 원심밸브는 컴마형상의 비이드 또는 삼각형상의 평스트립으로 만들어지며 밸브의 한 단부는 피봇되고 다른 단부는 압축 또는 인장스프링에 의하여 매달린다. 필요하다면 이런 다수의 밸브가 동일 원주변을 따라 또는 반경방향으로 형성된 다수의 연통구멍 근처에 제공될 수 있다.In order to achieve the above object, the temperature-sensitive fluidic fan coupling device according to the present invention has a sealed box consisting of a rotating drive shaft with a drive disk attached to the upper end and a cover and a casing with a cooling fan attached to the outer periphery thereof. The sealed box is divided into an oil chamber and a torque transfer chamber by a partition plate having an oil flow adjustment hole having a drive disc accommodated in the torque transfer chamber. The oil chamber is provided with an oil circulation passage, and the torque transfer chamber has a drive disc and A dam is provided on the inner wall surface connected to the oil circulation passage in the opposite direction to the outer periphery. In addition, the temperature sensitive member is attached to the central portion of the front surface of the cover which forms part of the sealing box together with the casing, the valve member is provided in the oil chamber, one end of the valve member is fixed to the partition plate, and the other end is the oil flow adjusting hole. Adjacent to In operation, the valve member opens the oil flow hole of the drive disc when the ambient temperature exceeds a predetermined value, while the temperature response through the connecting rod disposed between the valve member and the temperature sensitive member when the ambient temperature is below the predetermined value. According to the deformation of the member, the valve member closes the hole. The torque transfer from the rotary drive shaft to the sealing box is thus controlled by an increase or decrease in the effective contact area of the oil in the torque transfer clearance formed between the inner side of the cover and the inner side wall surfaces of the casing and the drive disk. In addition to the above-described structure, the present invention is characterized in that the centrifugal valve closes the communication hole when the rotating drive shaft operates at a high speed by providing at least one centrifugal valve in the drive disk near the communication hole. Centrifugal valves are made of comma-shaped beads or triangular flat strips, one end of the valve being pivoted and the other end suspended by a compression or tension spring. If desired, such a plurality of valves may be provided along a plurality of communication holes formed along the same circumference or in a radial direction.

구동디스크의 연통구멍 근처에 제공된 원심밸브를 갖는 상기 구조에서, 자동차의 엔진이 자동차의 고속운행시 고속으로 회전될때 또는 엔진이 자동차의 정상운행 상태에 대하여 크거나 작은 속도차를 가지고 가속될때 구동디스크의 연통구멍은 원심밸브에 의하여 폐쇄되어 토크전달챔버의 하나의 토크전달 틈새만을 통하여 토크가 전달되므로 팬의 회전수와 냉각공기량을 감소시킨다.In the above structure having a centrifugal valve provided near the communication hole of the drive disc, the drive disc when the engine of the vehicle is rotated at high speed during the high speed driving of the vehicle or when the engine is accelerated with a large or small speed difference with respect to the normal driving state of the vehicle. The communication hole of is closed by the centrifugal valve so that torque is transmitted through only one torque transmission gap of the torque transmission chamber, thereby reducing the fan rotation speed and cooling air amount.

본 발명이 첨부도면과 관련하여 이하 상세히 설명될 것이다.The invention will be described in detail below with reference to the accompanying drawings.

제8도와 제9도에서, 도면부호(1)은 다수의 연통구멍(7')가 제공된 구동디스크(7)을 상단부에서 갖는 회전축을 나타낸다. 회전축(1)은 외주변에 냉각팬(도시하지 않음)이 부착된 커버(3)과 케이싱(2)로 구성된 밀봉박스를 베어링을 통하여 지지한다. 도면부호(5)는 밀봉박스의 내부를 오일챔버(6)과 내부에 상술한 구동디스크(7)을 갖는 토크전달챔버(4)로 구분하는 간막이판을 나타낸다. 간막이판(5)에는 오일챔버(6)으로부터 토크전달챔버(4)로의 오일의 유동을 조정하기 위하여 유동조정구멍(5')가 제공된다. 또한 토크전달챔버(4)내의 구동디스크(7)은 토크가 전달되도록 외주변 부분에서 밀봉박스의 양쪽 내측벽으로부터 작은 틈새를 유지한다. 도면부호(8)은 간막이판(5)의 유동조정구멍(5')를 개방하고 폐쇄하기 위하여 오일챔버(6)속에 설치되는 밸브부재를 나타내며, 그 한 단부는 간막이판(5)에 리벳 고정되고 다른 단부는 유동조정구멍(5')에 인접 위치된다. 도면부호(10)은 커버(3)의 전방면에 고정된 지지판(11)에 의하여 지지되는 양단부를 갖는 편평한 바이메탈로 구성되어 주변온도가 변화할때 밸브부재와 온도감응부재(10) 사이에 배치된 커넥팅로드(9)를 통하여 온도감응부재(10)의 변형에 따라 밸브부재를 작동시키는 온도감응부재를 나타낸다. 따라서, 주변온도가In FIG. 8 and FIG. 9, reference numeral 1 denotes a rotating shaft having a drive disk 7 provided at the upper end with a plurality of communication holes 7 '. The rotating shaft 1 supports a sealed box consisting of a cover 3 and a casing 2 having a cooling fan (not shown) attached to an outer circumference thereof through a bearing. Reference numeral 5 denotes a partition plate which divides the inside of the sealed box into an oil chamber 6 and a torque transfer chamber 4 having the drive disk 7 described above. The partition plate 5 is provided with a flow adjusting hole 5 'for regulating the flow of oil from the oil chamber 6 to the torque transfer chamber 4. In addition, the drive disk 7 in the torque transfer chamber 4 maintains a small gap from both inner walls of the sealed box at the outer peripheral portion so that torque is transmitted. Reference numeral 8 denotes a valve member installed in the oil chamber 6 to open and close the flow adjustment hole 5 'of the partition plate 5, one end of which is riveted to the partition plate 5 And the other end is located adjacent to the flow adjusting hole 5 '. Reference numeral 10 is composed of a flat bimetal having both ends supported by the support plate 11 fixed to the front surface of the cover 3, and disposed between the valve member and the temperature sensitive member 10 when the ambient temperature changes. Through the connecting rod 9 is shown a temperature sensitive member for operating the valve member in accordance with the deformation of the temperature sensitive member 10. Therefore, the ambient temperature

소정치를 초과할때 밸브부재(8)은 유동조정구멍(5')를 개방하여 오일챔버(6)속의 오일을 토크전달챔버(4)속으로 유동시키므로 토크전달을 가속시키는 반면, 주변온도가 소정치 이하일때 밸브는 유동조정구멍(5')를 폐쇄하므로 토크전달양을 감소시킨다. 도면부호(12)는 구동디스크(7)의 외주변부의 반대측 밀봉박스의 내주벽의 일부에 형성된 댐을 나타내며, 여기서 디스크의 회전시에 오일이 모인다. 댐(12)는 전방에 형성된 입구부분과 연결되는 토크전달챔버(4)로부터 오일챔버(6)에 이르는 순환통로(13)을 제공함에 의하여 펌핑기능을 갖는다. 도면부호(14)는 예를들어 컴마형상(제2도-제4도) 또는 삼각형상(제5도)의 평스트립으로 만들어진 원심밸브를 나타낸다. 원심밸브(14)는 연통구멍(7')의 근처에서 구동디스크(7)에 반경방향으로 고정된 한 단부를 가지며 인장스프링(제4도) 또는 압축스프링(제5도)가 부착된다. 따라서 연통구멍(7')은 구동디스크(7)의 고속회전으로 생긴 원심력에 의해 작동되는 원심밸브에 의하여 폐쇄되며 토크전달챔버속의 하나인 토크전달 틈새 즉 전방틈새에 의해서만 토크가 전달되는 반면 다른 틈새(후방)는 오일의 순환을 방해한다. 자동차의 고속운행중과 자동차의 정상운행 상태시 크고작은 속도 차이를 가지고 가속될때 원심밸브의 특성에 대하여 제6a도-제6c도의 곡선(A)가 참고로 도시되며 도면부호(15)는 밀봉박스의 외측벽으로부터 돌출하는 다수의 냉각핀을 나타낸다.When the predetermined value is exceeded, the valve member 8 opens the flow adjusting hole 5 'to flow oil in the oil chamber 6 into the torque transfer chamber 4, thereby accelerating torque transfer, while the ambient temperature is increased. When below a predetermined value, the valve closes the flow adjusting hole 5 ', thereby reducing the torque transfer amount. Reference numeral 12 denotes a dam formed on a part of the inner circumferential wall of the sealing box opposite to the outer periphery of the drive disc 7, where oil is collected upon rotation of the disc. The dam 12 has a pumping function by providing a circulation passage 13 from the torque transfer chamber 4 connected to the inlet portion formed at the front to the oil chamber 6. Reference numeral 14 denotes a centrifugal valve made of, for example, a flat strip of a comma shape (Figs. 2 to 4) or a triangle shape (Fig. 5). The centrifugal valve 14 has one end fixed radially to the drive disk 7 near the communication hole 7 'and is attached with a tension spring (FIG. 4) or a compression spring (FIG. 5). Therefore, the communication hole 7 'is closed by the centrifugal valve operated by the centrifugal force generated by the high speed rotation of the drive disk 7, and the torque is transmitted only by the torque transmission gap, that is, the front gap, which is one of the torque transmission chambers, while the other clearance is (Rear) interferes with the circulation of oil. The curve (A) of FIGS. 6A to 6C is shown as a reference for the characteristics of the centrifugal valve when the vehicle is accelerated with a large and small speed difference during the high speed driving and the normal driving state of the vehicle. It shows a plurality of cooling fins protruding from the outer wall.

원한다면 제4도에 도시한 바와같이 반경방향으로 다수의 연결구멍(7'),(7a'),(7b')와 인장스프링(14'),(14a'),(14b')에 의하여 작동되는 다수의 원심밸브(14),(14a),(14b)가 제공되어, 이들 구멍들이 연속으로 폐쇄되거나, 제5도에 도시한 바와같이 이들 연통구멍들의 직경이 작게 만들어지고 동일 원주변을 따라 배열되어 서로 다른 스프링 상수를 갖는 압축스프링(14'),(14a'),(14b')에 의하여 연속으로 폐쇄되어 제7도에 도시한 바와같이 팬의 다단계 제어를 수행하며, 팬의 회전수는 다단계 형식으로 증가된다. 이 경우 제7도의 예와는 다르게 팬의 회전수를 다단계 형식으로 감소시킬 수도 있다. 또한 본 발명은 제8도에 도시한 바와같이 래버린스 기구(labyrinth mechanism)(1 6)을 갖는 온도감응형 유체식 팬 커플링 장치의 적용될 수 있으며, 여기서 구동디스크(7)에는 한쪽 측면에서 다수의 돌출부가 제공되며 다수의 오목부가 밀봉박스의 반대쪽 벽면속에 형성되어 오목부 사이에 돌출부가 수용되므로 구동디스크(7)과 밀봉박스 사이에 지그재그형 토크전달 틈새(15)를 형성한다. 이 경우 원심밸브(14)는 래버린스 기구 반대측, 즉 간막이판(5)의 측에 배열되어, 래버린스 기구(16)의 측면보다 작은 간막이판(5)의 측면에 토크전달면을 만들기 때문에 자동차 엔진이 정상운행 상태로부터 큰 속도 차이로 가속되며 구동디스크(7)의 양측이 토크전달 표면 역할을 할때 제6b도 곡선(C)의 가속특성이 얻어진다.If desired, actuated by a plurality of connecting holes 7 ', 7a', 7b 'and tension springs 14', 14a ', 14b' in the radial direction as shown in FIG. A plurality of centrifugal valves 14, 14a, 14b are provided so that these holes are closed in succession, or as shown in FIG. 5, the diameters of these communication holes are made smaller and along the same circumference. Arranged to be continuously closed by compression springs 14 ', 14a' and 14b 'having different spring constants to perform multi-step control of the fan as shown in FIG. Is increased in a multilevel format. In this case, unlike the example of FIG. 7, the rotation speed of the fan may be reduced in a multi-step format. The present invention can also be applied to a temperature sensitive fluidic fan coupling device having a labyrinth mechanism 16 as shown in FIG. And a plurality of recesses are formed in the opposite wall surface of the sealing box to form a zigzag torque transfer gap 15 between the drive disk 7 and the sealing box since the projections are received between the recesses. In this case, the centrifugal valve 14 is arranged on the opposite side of the labyrinth mechanism, that is, on the side of the partition plate 5, so that the torque transfer surface is made on the side of the partition plate 5 smaller than the side of the labyrinth mechanism 16. When the engine is accelerated by a large speed difference from the normal running state and both sides of the drive disk 7 serve as torque transmission surfaces, the acceleration characteristic of the curve C of FIG. 6B is obtained.

상술한 것처럼, 본 발명에 따른 온도감응형 유체식 팬 커플링 장치는 여러가지 이점을 갖는다. 즉 구동디스크(7)의 연통구멍(7')에 배열된 원심밸브(14)의 구조를 통해 회전축의 고속회전으로 생긴 원심력이 가해지고 밸브에 의하여 연통구멍이 폐쇄되어 토크전달챔버(4)속에 형성된 하나의 토크전달 틈새를 통해서만 토크가 전달되는 반면, 다른 틈새는 오일의 유동을 방해하므로, 온도감응부재(10)에 의해 작동하는 밸브부재(8)에 의한 오일유동조정구멍의 개방과 폐쇄기능과 결합된 회전제어기구에 의하여 팬의 회전수가 감소되며, 따라서 특히 자동차의 고속운행중 및 정상운행 상태로부터의 가속시에 엔진이 고속으로 회전하더라도 엔진에 공급될 냉각공기의 양을 감소시킨다. 또한, 팬의 필요한 다단계 제어가 가능하기 때문에 마력소비량이 절감되며 동시에 팬 소음 정도가 이전보다 보다 효과적으로 감소될 수 있다.As mentioned above, the thermosensitive fluidic fan coupling device according to the present invention has several advantages. In other words, through the structure of the centrifugal valve 14 arranged in the communication hole 7 'of the drive disk 7, the centrifugal force generated by the high-speed rotation of the rotating shaft is applied, and the communication hole is closed by the valve, so that The torque is transmitted only through one formed torque transmission gap, while the other gap interferes with the flow of oil, and thus the opening and closing function of the oil flow adjustment hole by the valve member 8 operated by the temperature sensitive member 10 is provided. The rotation speed of the fan is reduced by the rotation control mechanism in combination with and thus reduces the amount of cooling air to be supplied to the engine even when the engine rotates at high speed, particularly during acceleration of the vehicle and acceleration from normal driving conditions. In addition, since the necessary multi-stage control of the fan is possible, horsepower consumption is reduced, and at the same time, the fan noise level can be reduced more effectively than before.

Claims (3)

회전축(1)과, 상기 회전축의 상단부에 고정되며 연통구멍(7')을 갖는 구동디스크(7)과, 상기 회전축에 지지되는 밀봉박스와, 상기 밀봉박스의 커버형성부의 중앙부에 부착된 온도감응부재(10)와, 밸브부재(8)로 구성되며, 상기 밀봉박스는 외주변에서 냉각팬이 부착된 커버(3)와 케이싱(2)로 형성되어 적어도 오일유동조정구멍(5')을 갖는 간막이판(5)에 의하여 오일챔버(6)와 토크전달챔버(4)로 구분되며, 상기 구동디스크(7)은 상기 토크전달챔버(4)속에 수용되며, 상기 오일챔버에는 오일순환통로(13)이 제공되고 상기 토크전달챔버에는 상기 구동디스크의 외주변과 반대측으로 상기 오일순환통로와 연결된 내측벽면위의 댐(12)이 제공되며, 상기 밸브부재(8)의 한 단부는 상기 간막이판에 고정되고 다른 단부는 상기 간막이판의 오일유동구멍(5')에 인접하여 상기 온도감응부재의 후방면과 상기 밸브부재 사이에 배치된 커넥팅로드(9)에 연결되어, 주변온도가 소정치를 초과할때 밸브부재(8)은 상기 오일유동조정구멍(5')를 개방하는 반면, 주변온도가 소정치 이하일때 상기 온도감응부재(10)의 변형에 따라 상기 구멍(5')을 폐쇄하므로 상기 케이싱과 상기 커버의 반대쪽 내측벽면과 상기 구동디스크 사이에 형성된 토크전달 틈새에서 오일의 효과적인 접촉면이 증가 또는 감소함에 따라 상기 회전축(1)로부터 상기 밀봉박스로의 토크전달이 제어되는 온도감응형 유체식 팬 커플링 장치에 있어서, 상기 구동디스크(7)에는 연통구멍에 인접하여 일단부가 피봇고정되고 연통구멍 외측에 돌출형성된 정지핀에 의해 이동이 제한되는 적어도 하나의 원심밸브(14 ; 14,14a,14b)가 구비되며, 상기 회전축이 고속으로 회전할때 원심밸브가 상기 연통구멍(7' ; 7',7a',7b')을 폐쇄하는 것을 특징으로 하는 온도감응형 유체식 팬 커플링 장치.A rotating shaft 1, a drive disk 7 fixed to an upper end of the rotating shaft and having a communication hole 7 ', a sealed box supported by the rotating shaft, and a temperature sensitive attachment to a central portion of a cover forming portion of the sealed box. Member 10 and valve member 8, wherein the sealed box is formed of a cover 3 and a casing 2 with a cooling fan at an outer periphery, and has at least an oil flow adjusting hole 5 '. The partition plate (5) is divided into an oil chamber (6) and a torque transfer chamber (4), the drive disk (7) is accommodated in the torque transfer chamber (4), the oil chamber in the oil circulation passage (13) ) Is provided and the torque transfer chamber is provided with a dam 12 on the inner wall surface connected to the oil circulation passage on the opposite side to the outer periphery of the drive disk, and one end of the valve member 8 is connected to the partition plate. The other end is fixed and is adjacent to the oil flow hole 5 'of the partition plate. Connected to the connecting rod 9 disposed between the rear surface of the temperature sensitive member and the valve member, the valve member 8 opens the oil flow adjustment hole 5 'when the ambient temperature exceeds a predetermined value. On the other hand, when the ambient temperature is below a predetermined value, the hole 5 'is closed according to the deformation of the temperature sensitive member 10, so that oil in the torque transmission gap formed between the inner wall surface of the casing and the cover opposite the driving disk and the driving disk is closed. In the temperature-sensitive fluidic fan coupling device in which torque transmission from the rotary shaft 1 to the sealed box is controlled as the effective contact surface of the motor increases or decreases, the drive disk 7 is once adjacent to a communication hole. At least one centrifugal valve (14; 14,14a, 14b) is additionally pivoted and limited by movement by a stop pin protruding outside the communication hole. The valve is the communication hole (7 '; 7', 7a ', 7b') a temperature sensitive fluid type fan coupling device, characterized in that for closing the. 제1항에 있어서, 상기 원심밸브는 컴마형상 또는 삼각형상의 평스트립으로 만들어져 피봇고정된 한단부외의 다른 단부는 인장 또는 압축스프링(14' ; 14',14a',14b')에 의하여 매달리도록 되어 있는 것을 특징으로 하는 온도감응형 유체식 팬 커플링 장치.2. The centrifugal valve according to claim 1, wherein the centrifugal valve is made of a comma-shaped or triangular flat strip so that the other end except the pivotally fixed end is suspended by a tension or compression spring 14 '; 14', 14a ', 14b'. A temperature sensitive fluidic fan coupling device, characterized in that. 제1항에 있어서, 상기 구동디스크에는 반경방향으로 또는 동일 원주변을 따라 다수의 연통구멍이 제공되며 상기 원심밸브는 상기 각각의 연통구멍 근처에 제공되는 것을 특징으로 하는 온도감응형 유체식 팬 커플링 장치.The thermosensitive fluidic fan couple of claim 1, wherein the drive disk is provided with a plurality of communication holes radially or along the same circumference and the centrifugal valve is provided near each communication hole. Ring device.
KR1019900019756A 1989-12-01 1990-12-01 Coupling device KR940005980B1 (en)

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JP1989139826U JP2554862Y2 (en) 1989-12-01 1989-12-01 Temperature sensitive fluid type fan coupling device

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DE4038484C2 (en) 1993-06-09
GB2238853A (en) 1991-06-12
JP2554862Y2 (en) 1997-11-19
KR910011520A (en) 1991-08-07
DE4038484A1 (en) 1991-06-06
GB2238853B (en) 1993-09-29
JPH0378140U (en) 1991-08-07
GB9026156D0 (en) 1991-01-16
US5109965A (en) 1992-05-05

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